A circular, single or multipiece item, metallic or nonmetallic in composition, designed to be fitted in a circumferential groove in a piston and to spring outward against the cylinder wall to function as a seal or wiper. It is supplied in various cross-sectional shapes and is cut through at one point to allow for installation in the piston ring groove. It may include an expander. Excludes packing, preformed; retainer, oil seal; retainer, packing; ring, retaining; ring wiper; and seal ring, metal.
Classification: Parts for steam turbines
NSN 6150-00-799-4528
NSN 5999-01-447-0767
NSN 6320-01-220-2264
NSN 5930-01-147-0828
NSN 6135-01-454-7041
NSN 6320-00-025-9910
NSN 6645-00-283-6794
NSN 5945-01-255-0345
NSN 5915-00-398-0677
NSN 5975-00-655-0761
NSN 6650-01-454-6878
NSN 5905-01-401-5325